Loom



Mardi 18, 1941- M. A. GQLDMAN Erm. 2.235.760

LODI

Filed Sept. 26, -1938 12 sheets-sheet 1` www lu/'ias f7. 7a/dma!! JahnHaai Y Mardi 18 1941- M. A; GCLDMAN mmm 2,235.36@

Loom

Filed sept. 26, 193B 12 sheets-smet 2 Ch 18, 1941- M. A. GOLDMAN Erm.2,235.760

LOOH l Filed Sept. 26, 193B l2 Sheets-Sheet 4 mm Ha of m Murine JaimMarch 18, 1941. A, GOLDMAN ErAL 2,235,760

LOOM

Filed Sept. 26, 1938 12 Sheets-Sheet 5 l Jahn 7. Hanf March 18, 1941- M.A. GOLDMAN ETAL Loon Filed sept. 26. 193s 12 Sheets-Sheet 6 w 1M/Www@March 18, 1941. M. A. GOLDMAN ETAL LOOM Filed Sept. 26, 1938 12Sheets-Sheet T Mardl 18, 1941 M. A. GOLDMAN E111-AL 2.239760 LOOM FiledSept. 26, 1938 12 Sheets-Sheet 8 glwucvxfom.

Marica E 'a/a'man Il Il Il Il Il Il Jaim 7. Hzm

March 13, 1941- M. A. GOLDMAN r-:rAL 2.235.760

LOOM

Filed Sept. 26, '1958.7 l2 Sheets-Sheet 9 March 18, 1941. M. A. GOLDMANErm.v 2,235,760

` Loom Filedsept. 2e, 1938 12 sheets-sheet 1o yin wucntow Myrica .Hl@aid/77517 Jaim mmf 532343 Jr I NMHMA March 13, 1941- M. AQGOLDMAN ErAL2,235,760

LOOl

Filed Sept. 26, 1938 12 Sheets-Sheet 11 gwuMvto/m, Marica H. 5b/dma!!Jaim 7. Hzzz March 18, 1941. M, A GLDMAN TAL 2,235,760

LD Oll Filed sept; 2s, 195s 12 sheets-sheet 12 usw mund

- lume/who@ Murine J9. 'a/a'malz tarea Mar. 18,1941

NITED STATES FFICE LOOM of Massachusetts Application September 26, 1938,Serial No. 231,797 1s claims. (Cl. 13s-1s) The invention relates broadlyto looms and the art of weaving and, more particularly, to verticallooms and is of special utility in the weaving of fabrics of the natureof gauzealthough this.is

5 stated by Way of illustration and not by way of limitation. It wasdevised to obviate certain disadvantages attendant on the operation ofthe ordinary loom.

lin looms as heretofore constructed the Warp is either pulled from thewarp beam by the intermittent motion of the heddles, the sudden jerk ofwhich frequently breaks some of the warp`threads, or the warp isunreeled from the beam by a mechanical let-off motion which operateswhen a feeder bar or other device is actuated by the taut warp and whichidles when the warp is loose thereby causing a periodic unreeling of thewarp and corresponding variations of the tension inthe same. A diamondshaped shed is formed by a straight line motion of the heddles inopposite direction from end to end of the minor axis of the diamond. Asthe heddle eyes carrying the two banks of warp threads pass ea'ch othermidway of the minor axis, the diamond is collapsed and, as the length ofthe major axis is much less than two sides of the shed when open,` thewarp thread is very loose, only to be snapped taut at the end of themotion as the shed is re-opened. To reduce the above amount of loosenessin the warp, on the front or weaving side of the heddles,

' there have been devised various compensating devices to keep all ofthe slack on the opposite or backside of the heddles. This causes thethread to slide backwards through the heddle eye as the shed closes andforward as itopens. As the distance it slides is many times the amounttaken up in weaving by each motion, it is plain to' see that eachsection of the thread undergoes this reverse scuiiing action to such anextent as seriously to attack the structure of the thread and limit thespeed of the machine.

The usual shuttle is propelled by a picker stick which is actuated by aVstrap froma rocker shaft which in turn is actuated by a cam, thisindirect application of power making it necessary for the cam to have avery abrupt step so as to deliver practically a hammer blow to theshuttle. This is both a destructive and a limiting factor. The

shuttle box or trap whichpatches and stops the shuttle. is provided withvarious means such `as side friction and trap levers but in all modelsthe flying shuttle is stopped by a stationary box or trap causing greatshock anda tendency to rebound. The shuttle deposits the weft thread ata con'- siderable distance from the apex of the shed or weaving pointmaking it necessary to employ a lay, reed or comb motion to carry thethread into position which operation limits the speed ofthe machine. Thewoven fabric is held in contact with the take-up roll by a complicatedcombination of spurgears, racks and torsion springs which makes equalpressure on the full length of the roll impossible, thus causing therolls to bend or buckle.

As the heddles operate at right angles to the warp, they obstruct theoperators vision of the Warp behind the heddles. The general scheme orlayout is such that it is necessary to transmit power through longchains of gears with their back lash and irregular motion., throughabrupt surface cams and straps, thereby limiting the in weaving.

A further object of vthe invention is the provision of improved shedforming mechanism whereby an even tension shall be maintained at alltimes upon all parts of the warp, the length of the warp threads notbeing varied in operation due to the operation oi the shed formingmechannism.

Another object oi the invention is to provide a loom in which theoperator can more readily observe all parts .thereof due to theprovision of horizontal heddles which do not Vobstruct the vision, as tothe rear portions of the loom, as is the case in ordinary practice. V

`A further object of the invention is to provide improved shuttleoperating mechanism whereby the shuttle may be operated Without theusual noise and shocks and yet at very `high speed.

Another object of the` invention is to provide e improved gearingconnecting rotary parts of the loom, thus further reducing noise andvibration and ali'ordi'ng a quiet and smoothly operating loom.

Another object of the invention is to provide an improved shuttle forvertical looms, whereby the weft thread is laid at the apex of the warpshed i. e., at the fell of the fabric. .1

Another object of the invention is to provide -improved take-up andlet-oir mechanism whereby an even tension is maintained in thewarpthreads.

Other objects as well as the nature, characterstic features and scope ofthe invention more readily will be understood from the followingdetailed description taken in connection with the accompanying drawings,forming a part hereof, wherein- Figure 1 is a front elevation of theloom.

Fig. 2 is a plan of the same.

Fig. 3 is a left end elevation.

Fig. 4 is a view principally in transverse section with parts omittedfor clarity.

Fig. V5 is a horizontal section illustrating the shuttle operatingmechanism.

Fig. 6 is a longitudinal vertical section illustrating the samemechanism on line 6-6 of Fig. 5.

Fig. 7 is a Itransverse vertical section on line 1-1 of Fig. 6.

Fig. 8 is a detail of the shuttle carriage and cooperating parts.

Fig. 9 is a cross-section of "le shuttle carriage and guides on line 9-9of Fig. 6.

Fig. 10 is a vertical section on line |0|0 of Fig. 7.

Fig. 11 is a section transversely of the loom showing parts of the drivegearing.

Fig. 12 is a section on line |2-I2 of Fig. 11.

Fig. 13 is a plan partly in section and with parts omitted.

Fig. 14 is a section on line I 4|4 of Fig. 13.

Fig. 15 is a similar view showing the parts in different position.

Fig. 16 is a section on line |6-|6 of Fig. 14.

Fig. 17 is fa vertical section on line |1|1 of Fig. 13. f

Fig. 18 is a vertical section on line |8| 8 of Fig. 13.

Fig. 19 is a section on line Iii-I9 of Fig. 18.

Fig.`20 is a section on line 20-20 of Fig. 18.

Fig. 21 is a top plan of the shuttle. l

Fig. 22 is a 'longitudinal section on line 22-22 of Fig. 21. I

Fig. 23 is a cross-section of the shuttle on line 23-23 of Fig. 21; andK Fig. 24 is a rear elevation of the lthread-guiding block :at the endof the bobbin.

In the drawings reference .character indicates .a motor for driving theprincipal parts of the loom, the motor shaft 3| being geared to the mainshaft 32 -of the machine by sprocket gearing indicated at 33. The mainshaft drives shafts 34 and 35 through worm gearing shown in Fig. 11,shaft 34 being provided with a hand Wheel -36 for manual operation. Aclutch shown at 31 in Figs. 2 and 13 is operate@ by a clutch lever 38 toconnect or disconnect the shaft 34 and the gearing for driving the same.The shaft is con- ,nected by worm gearing shownin Fig.'l 4 .to a shaft39 which in turn is connected by worm gearing to shafts 40 land 4| fordriving the same.

Shedding motion upward through a guide 44, then through slots in a pairof combs and46 at opposite ends of the upper harness and then downwardto a slot in the bottom of a shuttle race 41. It, Will be noted that theend bars of harness 42 are shaped tomaintain a uniform tension on thewarps, as

will be further described hereinafter. The warps of the other set passupward from the guide 44 'through slots in heddles 48, then throughcombs y 49 and' 50 on the lharness and then through slots in another setof heddles 5| and doWnW-ardtothe guide in the shuttle race 41.

The upper harness is supported upon a pair of shafts 52 and 53 by meansof rock arms 54 and 55, rock arm 54 being splined to .the shaft 52 asshown in Fig. 19 and rock arm 55 being journaled on a bushing 56 onshaft 53. In similar manner heddle 43 is supported by a pair of rockarms 51 and 58, respectively, on shafts 52 and 53, arm 68 being splinedto shaft 53 and arm 51 being .iournaled on a bushing 59 on shaft 52. Theshafts 52 and 53 have disks 60 and 6|, respectively, mounted thereon atopposite sides of the shedding motion and there is a band 62 at eachside of the shedding motion secured to and rigidly connecting the disksand 6|, as by means of screws 63 bearing on collars 64 with roundedportions forcing parts of the corresponding band into depressions insaid disks. The disk which is adjacent to a splined -rock arml 54 or 58is splined to the corresponding rock shaft so that the rock arm mustrock with its disk, while disks' adjacent to loose arms 55 and 51 arejournaled on the same bushing as the rock arm and secured Ito theadjacent rock arm to cause the arm to oscillate with the disk.4

The harnesses are operated to impart a harmonic intermittentreciprocation to the heddles or equivalent devices by means now to bedescribed, the arrangement lbeing such that the length of the warpthreads is not varied due to the motion of the harnesses, thusmaintaining an even tension in all Ithe warps without changes due to themovement of the heddles and thus also i doing away with any necessityfor special means for taking up slack in the warps. The shaft 34, asshown in Figs. 13 to 17, -is Provided with a driver in the form of adisk 64 having a radially extending fin 65 midway between its ends andextending about the periphery of the disk. This iin has voppositelyextending anges 66 and 61 at its outer periphery extending axially offthe shaft and in opposite directions from the iin so as to providearcuateslots between said flanges and the body of the disk at oppositesides of the n 65. If now the shaft 34 and fthe disk 64 be rotatedclockwise in Fig. 14 a roller 68 on a pin 69 carried by the disk willengage in a slot in a segment 1li splined to rock shaft 53 and will rocksaid shaft counterclockwise so as to swing arm 58 counterclockwise ortoward the position shown in Fig. 18. In such movement the band 62connecting disk 6| to disk 60 will cause the latter to turncounterclockwise and the arm 51 is also forced to move due to itsconnection Withthe harness frame 43. Itxwill be noticed that themovement of any given part of the harness frame 43, such as .the heddleeyes, will be an arcuate one corresponding to |the movement of the pointof connection between a rock arm and the harness. Since all of theguiding elements for a given warp lie in the same vertical plane, itfollows that there will -be no change lof tension on any pant of fthewarps and therefore no need for any compensation, and no sliding of thewarp through heddle eyes or analogous elements due to movement of theharness.

At the same time that segment 10 isbeing moved counterclockwise asegment 1| splined to rock shaft 452 is being moved clockwise due to theinterengagement of the rack teeth on segments 10 and 1| at this time,for which reason the harness frame 42 is now being movedr clockwise ortoward the position shown4 in Fig. I8,

ldue to the fact that rock arms 54 are splined to the rock shaft 52, andthe thread engaging points on this harness frame also have an arcuatemovement, as explained above and with the same result for the warpscontrolled thereby.'

Adjacent to segment 1| there are splined to shaft 52 a disk 12 and acrank 'i3 carrying a roller 14. l'Phe disk 12 also carries a roller 15.Now as the parts approach the position of Fig. l5 roller 88 will passoat of theslot in segment 10 and into the slot in segment 1 |the heddleframes remaining stationary during such passage and the shuttle beingpicked at this time to insert a weft inthe shed. Immediately thereafterthe roller 68 will engage in the slot in rack segment 1I and thereuponthe direction of movement of shafts 52 and 53 is reversed and theharness frames are moved to a position which is the opposite lfof thatshown in Fig. 18, segment 10 being nowfmoved clockwise as segment 1|moves `counterclockwise and the parts returning to the position of Fig.17, where the roller 08 again is transferred from the slot in segment 1|to that in segment 10 for again reversing the movements of the harnessframes. 65 and 61 serve respectively to engage with the rollers 14 and15 for preventing excess movement of the rack segments, with consequentpossible disengagement thereof or with damage to parts driven thereby.It will be noted that flange t9 is in engagement with roller 14 in Fig.15 as the roller 60 is transferred leftward from segment 10 to segment1|, while Fig. 14 shows the roller 15 as being engaged by flange 61 asthe roller 68 moves across from rack 1I to rack 10. it.

will be seen from the foregoing that the harness means is always underpositive control by the Geneva mechanism of Figs. 14 to 17.

The warps lie against the inclined walls of, the shuttle race 41, asshown in Fig. 4, when the shuttle is being reciprocated. The end bars ofthe upper harness are oppositely beveled to assist in maintaining eventension onthe warps in the opposite positions of-this harness and toavoid sharp bending of the warps.

Picking mechanism For picking the shuttle 15, shown in dotted lines inFigs. 4. and 6, there is providedP a cam groove in a cylindrical cam 'i1on the shaft 35, this groove engaging a roller 10 on a rock arm 19connected by link 80 to a rock arm 8|. Rock arm 19 is fixed to a rockshaft 82 carrying a picker stick 03 and rock arm 9| is fixed to a shaft84 carrying a' picker stick 35. As the picking mechanisms at oppositeends of the shuttle race 41 are duplicates only one will be described.

The picker stick 95 (Fig: 8) is pivotally connected to a bar 85 which isconnected by a spring and preventing noise.

91 to a carriage 99 having rollers 89 supported on tracks in a cage 90.The bar 96 is also provided with supporting rollers 9| movable on tracksin said cage. At its outer end the carriage is provided with a resilientbuffer 92 to assist in cushioning the shock of the entering shuttle 1E Apair of spring pressed latches 93 pivoted at 94 each have anupwardlylextending detent portion 95 for engaging with the dependingnose 99 on the carriage to hold it in its extreme outward position, thesprings being shownrat 93'. In this position, as will be seen in Fig."6, thesprings 31 are extended. The

l'bars 00 also each have a depending projection 91`engaging in a slot inthe bottom of cage 90 for guiding the bar, andv a. resilient buffer 98'is provided lto limit the inward movement oi? the The ilan esY carriageand cushion its shock against the end of the shuttle lrace. Neartheir'outer ends the bars 06 have projections 99 having cam faces attheir right hand end, as seen in Fig. 8, for releasing the detents 95from the carriage. .'it will be seen therefore, that upon commencementof the stroke of picker stick 95 to the right the bars 06 will act toincrease the tension on springs 31 and to' release the latches 93 andthereby catapult the shuttle crosswise of the loom, but without theusual hammer action. This is the ilrst stage in the propulsion of thcshuttle.

The second stage of propulsion is caused by a pair of friction wheels|00 (Figs. 1, 2, 5, 6 and 7) located at opposite sides of the shuttle`race. These wheels are mounted on shafts driven by motors in casings|0I, each of said oasings being supported by a bracket |02 pivoted at|03 (Fig, 5). The friction wheels accelerate the speed of the shuttle upto a predetermined speed and are held in position to contact with thesides of the shuttle for that purpose. After the shuttle has reached thepredetermined speed desired (or after it has passed the wheels) thedriving wheels |00 are swung away from the shuttle by means of thepivoted brackets, which are moved in opposite directions by means shownin Figs. 5 and 'l comprising face cams |09 on shaft 35 each having a camslot engaged by a roller |05 carried by a reciprocating bar |06 guidedat its outer end in a 4bracket |01 on the machine frame, said bracketbeing provided with a track for an anti-friction roller v|03 (Fig. 10).The bars |05 are each connected by means of a turnbuckle |09 to a. yokeH0 (Fig. 5) pivoted at on a bracket |02. The pair of brackets |02 at oneend of the loom are pivotally connected together at ||2 to insure equaland conjoint movement of the brackets and the parts actuated thereby.

Adjacent the outer end position of the carriage there are two oppositelyacting carriage brake levers H3 pivoted at il! and provided with springs||5 tending to force they away fromthe carriage. These brake levers areproward position until released by the action of vbars 86. At such timethe levers H8 areretracted so as to free the brake levers for retractionby springs ||5 and this is done by means of vertical fingers |20,`onebeing mounted on a yoke ||0 and the other on a bracket |02, said fingersengaging with threaded studs |2| secured to levers 8 and provided withadjusting nuts for varying the innermost or operative position ofthelevers IIB. It should be noted that the inner positions of the motordriven friction wheels |00 are determinable by means of'turnbuckles |09.Guide pins |22 on yokes ||0 engage loosely in holes in bars |06. Aroller |23' (Fig. 1) is mounted on brackets |23' on thecage' 90 abovethe checking of the shuttle takes place in two stages, as well as thepropulsion of the shuttle, since it first strikes the shuttle carriagein its inner position where the stop 91 rests against buffer 98', thenis gradually decelerated as the carriage moves outward for the remainingonehalf of its total travel under the impulse of the shuttle, expandingthe spring 81 (the carriage being also retarded by its brakes H6), andthen being finally arrested as the carriage stops against the end of thecage 90, where the carriage is now held by the detent 93. It will beunderstood that the wings I8 are so related to their operating mechanismthat they can force the shuttle brakes inward suiciently to bear againstthe vshuttle but that the friction wheels |00 reach their innermostposition after the shuttle has passed in its return stroke too far to beengaged by them.

The let-0j and take-ap mechanism As explained above, shaft 39 drivesshafts 40 and 4| through worm gearing. The shaft 4|lcarries a let-ofi'roll |2 which is covered with cork or otherwise is given the desiredfrictionai engagement with the warps which are drawn by this roll from awarp beam |25 and over a pair of idlers |26 and |21, passing then to theguide .4E which may be provided with suitable means for guiding theseparate warps and holding them in place.

A take-up roll |28 for the cloth is mounted on shaft 4|, this roll beingpreferably covered with sandpaper or other suitable means for providingthe requisite friction. From the take-up roll the cloth passes over'anidler |26 and then to the cloth roll |30 which is frictionally driven byperipheral engagement with the take-up :rollLA |28'. The cloth roll iscarried by a pair of arms |3| mounted on a shaft |32 provided with asegment |33 about which there is passed a length of wire or the like|34, secured at one end to the upper part of the segment and having atthe other end a head |35 in a tube |36. A coil spring |31 surrounds themember |34 between head |35 and a cap |38 forming the end of the tubeand through which the member` |34 passes. The tension of the springs,whereby the cloth roll is pressed against the take-up roll |28 may beadjusted 4by means of a nut |39 on the tube |36, this nut pressingagainst a bearing |40 in which the tube is slidably mounted. In order toprovide for relative disengagement when the fabric roll is to be removedfrom the take-up roll for doiiing, the shaft |32 is equipped with atoothed segment |4| -(Fig. 3) adapted and arranged for cooperation witha worm |4|' which is mounted with a limited amount of end play on ashaft |42 which may be operated by a hand wheel |43. vA sleeve |42' isequipped with collars |42" .and |42. The latter is under the pressure ofa spring |43' thereby tending to slide the worm towards the left. Thecollar |42 has a cam face |43" which cooperates with a pivotal latch|43'" to restrain rotation of shaft |42 in one direction. A comb |44,shown lin this lgure, may be provided between the beam |25 and the idler|26 to aidin maintaining the individual warps in position.

Safety devices In Figs'. 2 and 13 there is shown a clutch member 31slidably mounted on shaft 34. with a shifter 38 for putting it'into andout of action so as to inactivate the shed forming mechanism. At thistime, of course, the said mechanism may aeaavcc be operated by hand bymeans of wheel 36. A link |45 (Figs. 2, 12 and 13) is connected at oneend to the lever 38 and at the other end to a lever |46 having a cut-outportion partially encircling a shaft |46 carrying a crank |48 by meansof which shafts 34 and 35 may be manually operated when pinion |41 isinmesh with a pinion |50 on shaft 32. When the clutch 3l' is engaged,lever |46 occupies the dotted line position in Fig. 12, wherein itprevents the shaft |40 from being moved to the left in Fig. 11 toengage` pinion |41 with pinion |50, thus avoiding any possibility ofactuation of handle |46 while clutch 3i is engaged.

It is sometimes desirable'to secure ready access to the raceway for theshuttle and related parts,

which is diiiicult due to the fact that this raceway is but littleremoved Afrom the horizontal harness frames, as best shown in Fig. 4.For

this'reason the front member of the raceway is provided with pivotalsupporting means (Figs. 4 and 11) comprising brackets |5| pivoted at |52so that said member can be turned clockwise to a suflicient distance forthe purpose.' For holding this race member normally in operativeposition there is provided a segment |53 rigid with the bracket |5i,said segment having a hole for engagement by a pin |54 carried by aslide |55 mounted on the breast beam of the loom and having an endportion so Ipositioned as to be in the path of enlarged portion |56 ofhandle |49 thus preventing manual operation of the loom while said racemember is out of operative position. `The slide |55 is normally held inthe p0- sition shown in Fig. 1 by means of a spring |51.

Below the slide |55 a bent lever |58 is pivoted on the frame at |59 saidlever having an enlarged end portion |60 also in the path of the collar|56, said lever preventing the handle from being pushed in to connectpinions |41 land |50 except after lever 58 is moved on its pivot toremove its end |60 from the path of handle portion E56.

The shuttle 16 (Figs. 4, 6 and 21 to 24) is provided at. one end with abobbin holder |62 secured by a bolt |63 and a. bobbin guide |64 for abobbin |65. At its front end a block |66 is mounted, said block beingprovided withA a threading slot |61 leading to a tapered hole at |68 forguiding the thread to a supporting bar |66. At the rear of hole |68there is additionally a flange |10 with a semi-circular opening leadingto the hole |66. From the bar |69 the thread leads to an eye |1| at thebottom of a swell IEZ which is a continuation of the apex of the V-shaped bottom portion of the shuttle and which lays the weft at thebottom of the vertical V- shaped shed, or at the fell of the cloththusdoing away with-any need for beat-up mechanism or its equivalent.

Having described the invention, claimed, is:

i. A vertical loom having horizontal harnesses, means coacting therewithto form a V-shaped shed, said means including a V-shapedA shuttle raceunderneathsaid harnesses having a front member, ashuttle vin said racewith a V-shaped lower portion, and pivotal means for supporting thefront member of said V-shaped race to facilitate access to the shuttle.

2. vA device as in claim 1, and means to prevent movement of said frontmember when the loom is being operated manually;

what is 3. A. loom having horizontal harnesses, means coacting therewithto provide a V-shape shed 75 below the harnesses, and including a-V-shape' shuttle race, a shuttle. picking means for moying the shuttlethrough said shed, a pair of shafts parallel to the path of saidshuttle, means cont necting one of said shafts to the harnesses, acylindrical cam on the other of said shafts with a groove in itsperiphery, and a follower in said groove' connected to the picking meansfor driving the same.

4. A vertical loom including a pair of horizontal harnesses, a pair ofshafts beneath them. means coacting with said harnesses to provide avertical shed at each end of the harnesses, rock arms supporting eachharness on said shafts, and means for rocking said shafts equally incpposite directions.

5. A device as in claim 4, each of saidlshafts having a pair of rockarms fixed thereto and to one of said harnesses to operate the harness,and each shaft having another pair of rock arms journaled thereon andsupporting in horizontal position the harness'operated by the other ofsaid shafts. f

6. A vertical loom comprising va pair of horizontal harnesses, meanscoacting therewith to form a vertical shed, means for imparting aharmonic movement to said harnesses including a pair of rock'shafts eachconnected to drive one of said harness, intermeshing racks on said rockshafts, a constantly rotating drive shaft, a pin on the shaft, and aslot'in each rack for alternate engagement by said pin.

7. A vertical loom having horizontal harnesses with warp-guiding meansspaced lengthwise thereof, fixed warpguiding means vertically spacedfrom each of saidA first-mentioned warp-guiding means, andharness-operating means arranged to move the warp-guiding means thereonwith reference to said fixed warp-guiding 40 means in such manner as tomaintain uniform tension on the warns.

8. A vertical loom having horizontal harnesses with warp-guiding meansspaced lengthwise thereof, fixed. warp-guiding means, and harness- 45operating means arranged to move the warp- .guiding means thereon inarcuate paths with reference to said i'ixed warp-guiding means.`

9. A vertical loom having horizontal harnesses,

means coacting therewith to form a V-shape 50 shed, said means includinga ,V-shape shuttle race beneath said harnesses and having a frontmember, al shuttle, pivotal brackets supporting said member whereby itmay be moved clockwise an effective distance for access to the shut- 55tle, and means to prevent operation of the loom when said member hasbeen moved clockwise.

10. A vertical loom having horizontal harnesses, a warp beam. and 'acloth roll, combined with means whereby the warp threads in their ootravel from the warp beam to the cloth m11 are caused to changedirection when arriving at the harness mechanism so that their directionof Itravel will be substantially inthe general direction ofreciprocation of the harness mechanism 65 and to change direction againwhen leaving the harness mechanism whereby to produce a V- shape shed. ashuttle race in the Vrshed and of conforming shape to support the shed,and a shuttle adapted to lay the weft-closely adjacent the point of theforward V-shape shed.

1l. A loom as set forth in claim 10 wherein the l shuttle race isstationary and the shuttle is free while within the shed and in whichthe shuttle in successive passages through any point in the shed movesin opposite directions.

12. A vertical loom having horizontal harnesses, warp guiding meansspaced lengthwise thereof, fixed warp guiding means vertically spacedfrom the harnesses and co-acting therewith to .provide a pair of V shedswhereof one4 isa true shed and the other a false shed, harness operatingmeans adapted to move the firstmentioned wairp' guiding means withreference to the second so as to maintain uniform tension on the warp,and a shuttle operatively mounted inthe true shed for laying the weft inthe apexl 13. A vertical loom having horizontal harnesses. a warp beam,and a cloth roll, combined with warp guiding means whereby the warpthreads in their travel from the warp beam to the cloth roll are causedto follow the general direction of reciprocation of the harnesses and tochange direction when leaving the harnesses so as to provide a. V shed,and harness operating means, the warp guiding means being responsive tomovement of vthe harness operating means to maintain uniform tension onthe warp threads.

14. A vertical loomaccording to claim 13, in-

icluding a shuttle adapted and arranged to be reciprocated through theshed, and means for causing the shuttle to lay the thread at the fell ofthe cloth whereby beat-up mechanism may be dispensed with.

' l5. A vertical loom according to claim 12, including, as an element ofthe shed forming means, a shuttle race to support the shed when theshuttle is reciprocated.

16. A vertical loom according to claim 12, wherein the harness operatingmeans includes Geneva gearing whereby theharness mechanism i's alwaysunder positive control.

17. A vertical loom having upper and lower horizontal harnesses,vertically disposed warp guiding devices, including a shuttle race,co.act

, ing with the harnesses to form a v shed, the

shuttle race having inclined side walls to form the apex of the shed. ashuttle, and lmeans eiiective to insure freedom of the shuttle whilewithin tle race, to form a.V V shed, and a shuttle operating within theshed'. the warp threads lying nesses, warpeguiding means, includinga Vshutagainst the inclined walls of the shuttle race 1 when 'the shuttleis reciprocated.

MAURICE A. GOLDMAN. JOHN O. HUNT.

